Method of charging liquids with gas.



No. 656,034. Patented Aug. l4, I900.

E. E. MURPHY.

METHOD OF CHARGING LIQUIDS WITH GAS.

(Application filed Nov. 27, 1899.)

(No Model.)

TN: Norms PETERS ca. Pnorau'mu, WASHINGTON. u. c.

. N TATES EDWARD E. MURPHY, OF SOMERVILLE, MASSACHUSETTS, ASSIGNQR T 0 THE NEW ERA GARBONATOR COMPANY, OF CHARLESTOWN, WEST VIRGINIA.

METHOD OF CHARGING LIQUIDS WITH GAS.

SPECIFICATION forming part of Letters Patent No. 656,034, dated August 14, 1900.

Original application filed February 10, 1899, SerialjNo. 7Q 5,l54. Divided and this application filed November 27,1899. Serial No. 738,3 il. Gl'o model) T0 at whom it may concern:

Be it known that I, EDWARD E. MURPHY,

of the liquid and carbonic-acid or other gas.

My invention consists of a certain useful method hereinafter described, and particularly pointed out in the claims.

: The drawing represents a vertical sec onal view of an apparatus in which my method is carried out.

In the drawing, A represents a reservoir or receptacle for the carbonated liquid produced by the apparatus to be described. This reservoir is provided with a suitable distrib-j uting outlet-pipe B, through which the carbonated liquid is drawn for use and which is controlled by a suitable valve B. The reservoir A is provided with upper and lower heads 0 G, which are screwed onto the ex-' terior of said reservoir. In the opening in the head 0 there is screwed the lower end of a liquid and gas mixing tube D, and in' the lower end of said tube there is secured by screw-threads a perforated spray-cap E, having diverging outlet-perforations F. Within said mixing-tube is a metallic sponge G, consisting of a series of layers of wire cloth through which the gas and liquid pass downwardly and by means of which the liquid is minutely subdivided in order to facilitate the thorough combination of the liquid and gas. This sponge rests at its lower end on the cap E and is held in a compact body by the sprayhead H, which is screw-threaded onto the mixing-tube D and has an annular shoulder H, which bears against the upper end of the 1netallic ,sponge G and holds said sponge in a compact body. On the upper part of said spray head is located a detachable spraynozzle I, having'a series of diverging perforations J, and the nozzle is supported in said head by resting on the annular shoulder K of said head. Within said nozzle and resting on the shoulder L thereof is a strainer M.

vOn the upper ends of the spray-head H and nozzle I is a packing N of any suitable material, and resting on said packing is a tailpiece Oof the union 0, into which is screwthreaded the liquid-supply pipe provided with a suitable check-valve O The unioncap P is screw-threaded onto the exterior of the upper end of the spray-head H and holds the parts in the position shown, also making 6o a water-tight joint. Located on one side of the spray-head II is a nose Q, externally and internally screw-threaded, and screwed into said ends is a valve-seat Q, having a passage Q controlled by the valve R, mounted on the valve-stem B. On the rear end of said valve-stem is a washer R and between said washer and the valve-seat is a coiled spring R adapted to assist in operating the valve R to close the passage Q as the apparatus fills with water. Against the end of the nose Q is a suitable packing S, and resting on said packing is a tailpiece T of the union T, into which is screw threaded the gas-supply pipe I U. The union-cap T is screw-threaded onto the exterior of the nose Q and holds the parts in the position shown and makes a gas-tight joint.

In operation the liquid-supply pipe is connected to a high-pressure service-pipe, say

pipe 0 and the liquid being cut up by the sponge at once causes the absorption of the gas until the apparatus is entirely filled with the carbonated liquid up to the perforations .I .of the spray-nozzle I, when all the admitted gas is absorbed and at which time the entire apparatus is under the initial water-pressure, and the valve R, controlling the gassupply, is closed, due to theliquid-pressure. "Now when the carbonated liquid is drawn off through the pipe B, the spray Ibeing so con- 10o structed as to retard the admission of the water, the carbonated liquid is drawn off faster than the same amount of water can be supplied in the same period of time, thereby providing room for the entrance of more new gas, which enters by the opening of the valve R, which valve is opened on account of the gas-pressure behind it, which is then greater than the pressure within the tube D, which pressure at that instant has been reduced by the drawing off of the carbonated liquid. Now the gas-pressure equalizing, the valve R closes, and the water continuing to flow in through the nozzle I produces a greater pressure than the gas-pressure and holds the valve R closed before the water-level has reached said valve, which remains closed as the water rises and fills the tube, and the valve is maintained in its closed position by the aid of the spring R and the rising water and consequent increased pressure in the tube D as the tube fills.

The admission of gas to the mixing-tube F is not due to the flow of water into the mixing-chamber; but its admission is controlled by the withdrawal of a certain volume of carbonated liquid, which causes a reduction of the pressure in the mixing-tube below the initial gas-pressure, so that the gas under its own pressure opens the valve R and passes into the mixing-tube at that instant, where it mixes with the water passing down through said sponge contained in said mixing-chamber. The mixing-tube D is of much less diameter than the reservoir A, so that the slightest withdrawal of the carbonated liquid will empty the tube D and cause the admission of new gas and liquid. The checkvalve 0 is for the purpose of preventing a loss of gas in the event of a break in the liqn upp p p .This application is a division of an application filed by me February 10, 1899, Serial No. 705,154, in which claims on the apparatus are contained.

Having thus ascertained the nature of my invention and set forth a construction embodying the same, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. The method of charging liquids with gas, which consists, first, in supplying liquid under pressure, second, in supplying gas under less pressure than that on the liquid, third, in bringing the gas and liquid into the presence of each other in the mixing-chamber upon a reduction of the pressure in said mixing-chamber below the initial gas-pressure by the withdrawal therefrom of carbonated liquid whereby the gas is caused by its initial pressure to enter said mixing-chamber independently of the infiowing liquid, fourth, in retarding the flow of the liquid into said mixing-chamber to allow the gas to fill the mixing-chamber before it is filled with the liquid, and fifth, in filling said mixing-chamber with liquid and normally maintaining the initial liquid-pressure in said chamber.

2. The method of charging liquids with gas, which consists, first, in supplying liquid under pressure, second, in supplying gas under less pressure than that on the liquid, third, in bringing the gas and liquid into the presence of each other in the mixing-chamber upon a reduction of the pressure in said mixing-chamber below the initial gas-pressure by the withdrawal therefrom of carbonated liquid whereby the gas is caused by its initial pressure to enter said mixing-chamber independently of the inflowing liquid, fourth, in retarding the flow of the liquid into said mixing-chamber to allow the gas to fill the mixing-chamber before it is filled with the liquid, fifth, in filling said mixing-chamber with liquid and normally maintaining the initial liquid-pressure in said chamber, and lastly, in subdividing and combining the gas and liquid in said chamber by the pressure on the liquid.

3. The method of charging liquids with gas, which consists, first, in supplying liquid under pressure, second, in supplying gas under less pressure than that on the liquid, third, in bringing the gas and liquid into the presence of each other in the mixing-chamber upon a reduction of the pressure in said mixing-chamber below the initial gas-pressure by the withdrawal therefrom of carbonated liquid whereby the gas is caused by its initial pressure to enter said mixing-chamber independently of the in flowing liquid,fourth, in filling the mixing-chamber with gas before it is filled with the liquid, and fifth, in subsequently filling said chamber with liquid and normally maintaining the initialliquidepressure in said chamber.

4. The method of charging liquids with gas, which consists, first, in supplying liquid under pressure, second, in supplying gas under less pressure than that on the liquid, third, in bringing the gas and liquid into the presence of each other in the mixingechamber upon a reduction of the pressure in said mixing-chamber below the initial gas-pressure by the withdrawal therefrom of carbonated liquid whereby the gas is caused by its ini: tial pressure to enter said mixing-chamber independently of the inflowing liquid, fourth, in filling the mixing-chamber with gas before it is filled with the liquid, fifth, in subsequently filling said chamber with liquid and normally maintaining the initial liquidrpressure in said chamber, and lastly, in subdividing and combining the gas and liquid in said chamber by the pressure on the liquid,

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 20th day of November, A. D. 1899.

EDWARD E. MURPHY.

Witnesses:

A. L. MEssER, O. A. STEWART. 

